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https://www.readbyqxmd.com/read/28814514/ba71%C3%AE-cd2-a-new-recombinant-live-attenuated-african-swine-fever-virus-with-cross-protective-capabilities
#1
Paula L Monteagudo, Anna Lacasta, Elisabeth López, Laia Bosch, Javier Collado, Sonia Pina-Pedrero, Florencia Correa-Fiz, Francesc Accensi, María Jesús Navas, Enric Vidal, María J Bustos, Javier M Rodríguez, Andreas Gallei, Veljko Nikolin, María L Salas, Fernando Rodríguez
African swine fever is a highly contagious viral disease of mandatory declaration to the World Organization for Animal Health (OIE). Lack of available vaccines make its control difficult and thus ASFV represents a major threat to the swine industry. Inactivated vaccines do not confer solid protection against African swine fever virus (ASFV). Conversely, live attenuated viruses (LAV), either naturally isolated or obtained by genetic manipulation, have demonstrated reliable protection against homologous ASFV strains, albeit little or no protection has been demonstrated against heterologous viruses...
August 16, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28811976/long-lived-pancreatic-ductal-adenocarcinoma-slice-cultures-enable-precise-study-of-the-immune-microenvironment
#2
Xiuyun Jiang, Y David Seo, Jae Hyuck Chang, Andrew Coveler, Eslam N Nigjeh, Sheng Pan, Florencia Jalikis, Raymond S Yeung, Ian N Crispe, Venu G Pillarisetty
Pancreatic ductal adenocarcinoma (PDA) remains a deadly disease that is rarely cured, despite many recent successes with immunotherapy for other malignancies. As the human disease is heavily infiltrated by effector T cells, we postulated that accurately modeling the PDA immune microenvironment would allow us to study mechanisms of immunosuppression that could be overcome for therapeutic benefit. Using viable precision-cut slices from fresh PDA, we developed an organotypic culture system for this purpose. We confirmed that cultured slices maintain their baseline morphology, surface area, and microenvironment after at least 6 d in culture, and demonstrated slice survival by MTT assay and by immunohistochemistry staining with Ki-67 and cleaved-Caspase-3 antibodies...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28807878/sex-dependent-changes-in-lipid-metabolism-ppar-pathways-and-micrornas-that-target-ppars-in-the-fetal-liver-of-rats-with-gestational-diabetes
#3
Daiana Fornes, Verónica White, Romina Higa, Florencia Heinecke, Evangelina Capobianco, Alicia Jawerbaum
Gestational diabetes mellitus (GDM) is a prevalent disease that impairs fetal metabolism and development. We have previously characterized a rat model of GDM induced by developmental programming. Here, we analyzed lipid content, the levels of the three PPAR isotypes and the expression of microRNAs that regulate PPARs expression in the liver of male and female fetuses of control and GDM rats on day 21 of pregnancy. We found increased levels of triglycerides and cholesterol in the livers of male fetuses of GDM rats compared to controls, and, oppositely, reduced levels of triglycerides, cholesterol, phospholipids and free fatty acids in the livers of female fetuses of GDM rats compared to controls...
August 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28803871/an-rnai-screen-in-a-novel-model-of-oriented-divisions-identifies-the-actin-capping-protein-z-%C3%AE-as-an-essential-regulator-of-spindle-orientation
#4
Florencia di Pietro, Léo Valon, Yingbo Li, Rosette Goïame, Auguste Genovesio, Xavier Morin
Oriented cell divisions are controlled by a conserved molecular cascade involving Gαi, LGN, and NuMA. We developed a new cellular model of oriented cell divisions combining micropatterning and localized recruitment of Gαi and performed an RNAi screen for regulators acting downstream of Gαi. Remarkably, this screen revealed a unique subset of dynein regulators as being essential for spindle orientation, shedding light on a core regulatory aspect of oriented divisions. We further analyze the involvement of one novel regulator, the actin-capping protein CAPZB...
August 4, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28802138/inhibition-of-bioenergetic-metabolism-by-the-combination-of-metformin-and-2-deoxyglucose-highly-decreases-viability-of-feline-mammary-carcinoma-cells
#5
María Florencia Arbe, Chiara Fondello, Lucrecia Agnetti, Gabriel Martín Álvarez, Matías Nicolás Tellado, Gerardo Claudio Glikin, Liliana María Elena Finocchiaro, Marcela Solange Villaverde
Feline mammary carcinoma (FMC) is a highly aggressive pathology that has been proposed as an interesting model of breast cancer disease, especially for the hormone refractory subgroup. Recently, cancer cell metabolism has been described as a hallmark of cancer cells. Here, we investigate the effects and mechanism of metabolic modulation by metformin (MET, anti-diabetic drug), 2-deoxyglucose (2DG, hexokinase inhibitor) or a combination of both drugs, MET/2DG on two established FMC cells lines: AlRB (HER2 (3+) and Ki67<5%) and AlRATN (HER2 (-) and Ki67>15%)...
August 3, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28756536/therapeutic-blockade-of-foxp3-in-experimental-breast-cancer-models
#6
Mariela A Moreno Ayala, María Florencia Gottardo, Mercedes Imsen, Antonela S Asad, Elisa Bal de Kier Joffé, Noelia Casares, Juan José Lasarte, Adriana Seilicovich, Marianela Candolfi
PURPOSE: Regulatory T cells (Tregs) impair the clinical benefit of cancer immunotherapy. To optimize the antitumor efficacy of therapeutic dendritic cell (DC) vaccines, we aimed to inhibit Foxp3, a transcription factor required for Treg function. METHODS: Mice bearing established syngeneic LM3 and 4T1 breast tumors were treated with antitumor DC vaccines and a synthetic peptide (P60) that has been shown to inhibit Foxp3. RESULTS: Treatment with P60 improved the therapeutic efficacy of DC vaccines in these experimental models...
July 29, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28755573/heteroleptic-oxidovanadium-iv-complexes-of-2-hydroxynaphtylaldimine-and-polypyridyl-ligands-against-trypanosoma-cruzi-and-prostate-cancer-cells
#7
Gonzalo Scalese, M Florencia Mosquillo, Santiago Rostán, Jorge Castiglioni, Irina Alho, Leticia Pérez, Isabel Correia, Fernanda Marques, João Costa Pessoa, Dinorah Gambino
In Latin America Chagas disease is an endemic illness caused by the parasite Trypanosoma cruzi (T. cruzi), killing more people than any other parasitic disease. Current chemotherapies are old and inadequate, thus the development of efficient ones is urgently needed. Vanadium-based complexes have been shown to be a promising approach both against parasitic diseases and cancer and this study aims to achieve significant advances in the pursue of effective compounds. Heteroleptic vanadium complexes of Schiff bases and polypyridine compounds were prepared and their stability in solution evaluated by EPR (Electronic Paramagnetic Resonance) and NMR spectroscopy...
July 18, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28741344/anidulafungin-in-children-experience-in-a-tertiary-care-children-s-hospital-in-argentina
#8
María T Rosanova, Claudia Sarkis, Florencia Escarra, Carolina Epelbaum, Norma Sberna, Susana Carnovale, Carlos Figueroa, Rosa Bologna, Roberto Lede
The experience using anidulafungin for the treatment of invasive fungal infections in pediatrics is limited. In this article, we describe our experience in 55 children. Anidulafungin was administered intravenously at a loading dose of 3 mg/kg once daily, followed by 1.5 mg/kg every 24 hours over a mean period of 14 days (range: 7-22 days). Patients' median age was 114 months old (interquartile range: 32-168 months old). All patients had underlying diseases. Among patients with bone marrow transplant, the difference in white blood cell count, transaminase levels, and renal function at baseline and at the end of anidulafungin administration was not significant...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28734712/-candidemia-in-pediatrics-species-distribution-and-antifungal-susceptibility
#9
Luciana B Guzzetti, Cecilia M Vescina, M Florencia Gil, Blanca M Gatti
Serious infections caused by Candida yeasts are frequent in the hospital population. Due to differences in species distribution and antifungal susceptibility testing depending on the geographic area and the type of patient, it is important to study the epidemiology of each institution. For this purpose, we conducted a retrospective, descriptive study on the occurrence of candidemia in the Children's Hospital "Superiora Sor María Ludovica" of the city of La Plata. In a 6-year period (2010-2015), 177 candidemia episodes were recorded...
July 19, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28727661/comparison-of-post-cesarean-section-opioid-analgesic-requirements-in-women-with-opioid-use-disorder-treated-with-methadone-or-buprenorphine
#10
Annmarie L Vilkins, Sarah M Bagley, Kristen A Hahn, Florencia Rojas-Miguez, Elisha M Wachman, Kelley Saia, Daniel P Alford
OBJECTIVE: Buprenorphine is a highly effective treatment for opioid use disorders, but its continuation in the perioperative setting remains controversial, unlike the accepted practice of perioperative methadone continuation. METHODS: We conducted a retrospective cohort study from 2006 to 2014 comparing post-cesarean section opioid analgesic requirements of women with opioid use disorders treated with methadone or buprenorphine. Preoperative, intraoperative, and postoperative opioid requirements (morphine equivalent dose [MED]), postoperative complications, and length of stay were compared between the methadone and buprenorphine groups...
July 19, 2017: Journal of Addiction Medicine
https://www.readbyqxmd.com/read/28726276/the-colonic-groove-of-the-plains-viscacha-lagostomus-maximus-histochemical-evidence-of-an-abrupt-change-in-the-glycosylation-pattern-of-goblet-cells
#11
María Florencia Tano de la Hoz, Mirta Alicia Flamini, Carolina Natalia Zanuzzi, Alcira Ofelia Díaz
The ascending colon of most rodent species shows a longitudinal colonic groove that works as a retrograde transport pathway for a mixture of bacteria and mucus toward the cecum. We describe the morphology and glycosylation pattern of the colonic groove of Lagostomus maximus to analyze the role of mucins in this anatomical feature. We also studied the distribution pattern of the interstitial cells of Cajal (ICC) to evaluate their regulatory influence on gut motility. The groove originated near the cecocolic junction and extended along the mesenteric side of the ascending colon, limited at both ends by nonpapillated ridges...
July 20, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28722310/capitalizing-on-scientific-advances-to-improve-access-to-and-quality-of-children-s-mental-health-care
#12
Ann F Garland, Florencia Lebensohn-Chialvo, Kristopher G Hall, Erika R N Cameron
The majority of mental health problems begin in childhood or adolescence. The potential benefits of early identification and treatment of such problems are well established, and models of effective mental health interventions for children have proliferated in recent decades. However, barriers in access to care and challenges in assuring delivery of high-quality care significantly limit the public health impact of services for children and families. Specifically, the majority of children who need mental health care do not receive it, and when children are in care, many do not receive interventions that are most likely to have the greatest positive impact...
July 19, 2017: Behavioral Sciences & the Law
https://www.readbyqxmd.com/read/28721805/automated-one-pot-radiosynthesis-of-11c-s-adenosyl-methionine
#13
Florencia Zoppolo, Williams Porcal, Patricia Oliver, Eduardo Osvaldo Savio, Henry Engler
BACKGROUND: Glycine-N-methyl transferase is an enzyme overexpressed in some neoplastic tissues. It catalyses the methylation of glycine using S-adenosyl methionine (SAM) as co-enzyme. SAM is involved in a great variety of biochemical processes, including transmethylation reactions. Thus, [11C]SAM could be used to evaluate transmethylation activity in tumours. The only method reported for [11C]SAM synthesis is an enzymatic process with several limitations. We propose a new chemical method to obtain [11C]SAM, through a one-pot synthesis...
July 18, 2017: Current Radiopharmaceuticals
https://www.readbyqxmd.com/read/28721526/genetic-characterization-of-human-hydatid-cysts-shows-coinfection-by-echinococcus-canadensis-g7-and-echinococcus-granulosus-sensu-stricto-g1-in-argentina
#14
María Florencia Debiaggi, Silvia Viviana Soriano, Nora Beatriz Pierangeli, Lorena Evelina Lazzarini, Luis Alfredo Pianciola, Melina Leonor Mazzeo, Sergio Moguillansky, Juan Angel Basualdo Farjat
Human cystic echinococcosis caused by the larval stage of Echinococcus granulosus sensu lato (s.l.) is a highly endemic disease in the province of Neuquén, Patagonia, Argentina. Human infections with E. granulosus sensu stricto (s.s.) G1 and Echinococcus canadensis G6 were reported in Neuquén in previous studies, whereas four genotypes were identified in livestock: G1, G3, G6, and G7. The aim of this study was to identify the genotypes of E. granulosus s.l. isolates from humans of Neuquén province, Patagonia, Argentina, through the 2005-2014 period...
July 18, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28717341/-an-ethics-call-to-include-pregnant-women-in-research-reflections-from-the-global-forum-on-bioethics-in-research
#15
Carla Saenz, Jackeline Alger, Juan Pablo Beca, José M Belizán, María Luisa Cafferata, Julio Arturo Canario Guzmán, Jesica E Candanedo P, Lissette Duque, Lester Figueroa, Ana Garcés, Lionel Gresh, Ida Cristina Gubert, Dirce Guilhem, Gabriela Guz, Gustavo Kaltwasser, A Roxana Lescano, Florencia Luna, Alexandrina A M Cardelli, Ignacio Mastroleo, Irene N Melamed, Agueda Muñoz Del Carpio Toia, Ricardo Palacios, Gloria I Palma, Sofía P Salas, Xochitl Sandoval, Sergio Surugi de Siqueira, Hans Vásquez, Bertha Ma Villela de Vega
No abstract text is available yet for this article.
2017: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
https://www.readbyqxmd.com/read/28716928/support-for-redistribution-is-shaped-by-compassion-envy-and-self-interest-but-not-a-taste-for-fairness
#16
Daniel Sznycer, Maria Florencia Lopez Seal, Aaron Sell, Julian Lim, Roni Porat, Shaul Shalvi, Eran Halperin, Leda Cosmides, John Tooby
Why do people support economic redistribution? Hypotheses include inequity aversion, a moral sense that inequality is intrinsically unfair, and cultural explanations such as exposure to and assimilation of culturally transmitted ideologies. However, humans have been interacting with worse-off and better-off individuals over evolutionary time, and our motivational systems may have been naturally selected to navigate the opportunities and challenges posed by such recurrent interactions. We hypothesize that modern redistribution is perceived as an ancestral scene involving three notional players: the needy other, the better-off other, and the actor herself...
August 1, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28716706/characterization-of-a-presymptomatic-stage-in-a-drosophila-parkinson-s-disease-model-unveiling-dopaminergic-compensatory-mechanisms
#17
Daniela Molina-Mateo, Nicolás Fuenzalida-Uribe, Sergio Hidalgo, Claudia Molina-Fernández, Jorge Abarca, Rafaella V Zárate, Marcela Escandón, Reinaldo Figueroa, María Florencia Tevy, Jorge M Campusano
Parkinson disease (PD) is a degenerative disorder characterized by several motor symptoms including shaking, rigidity, slow movement and difficult walking, which has been associated to the death of nigro-striatal dopaminergic neurons. >90% of PD patients also present olfactory dysfunction. Although the molecular mechanisms responsible for this disease are not clear, hereditary PD is linked to mutations in specific genes, including the PTEN-induced putative kinase 1 (PINK1). In this work we provide for the first time a thorough temporal description of the behavioral effects induced by a mutation in the PINK1 gene in adult Drosophila, a previously described animal model for PD...
July 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28707376/immunosenescence-induced-by-plasma-from-individuals-with-obesity-caused-cell-signaling-dysfunction-and-inflammation
#18
Mariana Migliorini Parisi, Lucas Kich Grun, Patrícia Lavandoski, Letícia Biscaino Alves, Ivi Juliana Bristot, Rita Mattiello, Cláudio Corá Mottin, Fábio Klamt, Marcus Herbert Jones, Alexandre Vontobel Padoin, Fátima Costa Rodrigues Guma, Florencia María Barbé-Tuana
OBJECTIVE: To evaluate the consequences of plasma from individuals with obesity on parameters associated with immunosenescence in unrelated healthy peripheral blood mononuclear cells (PBMC). METHODS: Freshly isolated PBMC were incubated in media supplemented with 10% of plasma from individuals with obesity or control subjects for the first 4 hours of 24 to 120 hours of culture. RESULTS: Plasma from individuals with obesity modulated the phenotype of healthy PBMC, leading to a higher rate of apoptosis, lower amounts of phospho-γH2AX and -p53, and mitochondrial dysfunction...
July 14, 2017: Obesity
https://www.readbyqxmd.com/read/28700575/synaptic-organization-of-visual-space-in-primary-visual-cortex
#19
M Florencia Iacaruso, Ioana T Gasler, Sonja B Hofer
How a sensory stimulus is processed and perceived depends on the surrounding sensory scene. In the visual cortex, contextual signals can be conveyed by an extensive network of intra- and inter-areal excitatory connections that link neurons representing stimulus features separated in visual space. However, the connectional logic of visual contextual inputs remains unknown; it is not clear what information individual neurons receive from different parts of the visual field, nor how this input relates to the visual features that a neuron encodes, defined by its spatial receptive field...
July 27, 2017: Nature
https://www.readbyqxmd.com/read/28693033/axial-involvement-according-to-asas-criteria-in-an-observational-psoriatic-arthritis-cohort
#20
Pedro David Carvalho, Florencia Savy, Carmen Moragues, Xavier Juanola, Jesus Rodriguez-Moreno
The definition of axial involvement in psoriatic arthritis (PsA) is still under debate. Currently, the axial spondyloarthritis (SpA) criteria defined by Assessment of Spondyloarthritis International Society (ASAS) may be the most adequate.(1) The aims of present study were to assess axial involvement according to ASAS criteria in an observational PsA cohort and define the clinical characteristics more associated with this kind of involvement. Our study included consecutive patients who had a visit in a tertiary Rheumatology centre...
April 2017: Acta Reumatológica Portuguesa
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